-Yelp "Elite Users" get the little title next to their name if they post enough useful reviews. Likewise Amazon has their whole 'Top Reviewer' thing. -Messageb

-Yelp "Elite Users" get the little title next to their name if they post enough useful reviews. Likewise Amazon has their whole 'Top Reviewer' thing. -Messageboards where members can give each other validation points, and then the amount of "rep points" someone has is displayed next to their name. -Foursquare has the reward of making a user the "Mayor" if they post enough reviews about a certain area, and gives users 'badges' for completing different tasks. (I've never actually used it, but its something to that effect.)